Abstract
With the continuous development of automotive active safety technology, automatic emergency braking technology has been widely used, playing an important role in avoiding rear-end collisions or collisions with pedestrians and other traffic participants. This article analyzes the technical characteristics of the automatic emergency braking system, put forward subjective evaluation index, select vehicle-to-vehicle, vehicle -to-pedestrian and other typical scenes for automatic emergency braking subjective evaluation and actual vehicle verification, and constructed a subjective evaluation system for automatic emergency braking of passenger car.
Highlights
This stage can be recognized as the early part of the Automatic Emergency Braking (AEB) function; The automatic braking part (AB) starts full brake deceleration when the system detects the danger of a collision, which stage can be recognized as the late part of the AEB function[2]
This article mainly studies the functions of vehicle-to-vehicle and vehicle-to-vulnerable road users of AEB, for the following four typical scenes [4]: 1) Vehicle-to-Vehicle
Through analyzing the technical features of automatic emergency braking, this article studied the vehicle field tests in four typical scenarios, and built an subjective evaluation system which is executable and can help on comprehensive, effective evaluation on the vehicle's automatic emergency braking at subjective evaluation aspect
Summary
Automatic Emergency Braking (AEB), that is, real-time monitoring of the driving environment in front of the vehicle, automatically activates the vehicle braking system slowing down the vehicle to avoid collision or reduce collision effect. when the vehicle detects a safe distance from the vehicle in front or other road users or obstacles where collision may occur. The AEB system architecture is mainly composed of three layers: perception layer, decision layer and execution layer. The current mainstream solution is the combination solution, which can combine the advantages of the two sensors distinguish the type of target even small targets through the camera, and detect the distance information through the radar, and combine two kinds of signal to increase the system stability and reduce the false trigger rate. After receiving the information sent by the radar or camera, it completes the signal processing, judges the relative position relationship with the target in front, evaluates the possibility of collision according to the internally set algorithm logic, and send out the execute command. The execution layer part is the emergency braking actuator, usually the ESC system, but there are other types of actuator, such as Bosch i-booster
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